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Estudo e análise de um sistema de transmissão utilizando a norma ANSI/AGMA2101-d04 e o método de elementos finitos
| Name: | Description: | Size: | Format: | |
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| 5.36 MB | Adobe PDF |
Advisor(s)
Abstract(s)
Devido sua eficiêcia e confiabilidade, as engrenagens são elementos essenciais em sistemas mecânicos na engenharia, sendo usadas nas mais diversas máquinas. Devido sua alta aplicação, faz-se necessário aprofundar estudos sobre seus modos de falhas, melhorias e otimizações nos sistemas de engrenamento.
Com isso, a Associoação Americana de Fabricantes de Engrenagens, AGMA (do inglês – American Gear Manufacturers Association) descreveu a norma ANSI/AGMA 2101-D04 (2016) onde baseia-se em padrões desenvolvidos a partir de pesquisas e testes empíricos em que busca pontos de melhoria e redução de falhas em projetos. Definindo tensões de contato entre os dentes das engrenagens devido ao engrenamento e tensões de flexão.
O presente trabalho buscou avaliar e comparar os resultados de tensão de um sistema de transmissão de uma máquina de pitting do tipo FZG, fabricado com Aço SAE 4118, por meio de duas abordagens distintas: Uma análise baseada nas diretrizes da norma ANSI/AGMA 2101-D04 (2016) e uma análise numérica de simulação utilizando o Método de Elementos Finitos no software ANSYS®. O método analítico baseia-se em equações e fórmulas que resultam de pesquisas, experimentos e testes desenvolvidos ao longo do tempo. Por outro lado, o método numérico emprega técnicas computacioanis para resolver problemas práticos de simulação na engenharia e em outras áreas, utilizando a discretização de equações matemáticas. Também, entender como a mudança de alguns parâmetros geométricos e condições de contorno podem interferir na resistência do sistema.
Avaliando as vantagens e limitações de cada abordagem, concluindo na implicação da escolha do método apropriado em diferentes cenários de engenharia.
Due to their efficiency and reliability, gears are essential components in mechanical engineering systems, being used in a wide range of machines. Given their extensive application, it is necessary to deepen studies on their failure modes, improvements and optimizations in gearing systems. In this context, the American Gear Manufacturers Association (AGMA) established the ANSI/AGMA 2101-D04 (2016) standard, which is based on guidelines developed from research and empirical tests aimed at identifying areas for improvement and reducing failures in gear design. This standard defines contact stresses between gear teeth due to meshing and bending stresses. This study aimed to evaluate and compare the stress results of a transmission system from an FZG-type pitting test rig, manufactured with SAE 4118 steel, using two different approaches: an analysis based on the guidelines of the ANSI/AGMA 2101-D04 (2016) standard and a numerical simulation analysis using the Finite Element Method in ANSYS® software. The analytical method relies on equations and formulas derived from research, experiments, and tests developed over time. On the other hand, the numerical method employs computational techniques to solve practical simulation problems in engineering and other fields by discretizing mathematical equations. Additionally, this study seeks to understand how changes in certain geometric parameters and boundary conditions can affect the system's strength. By evaluating the advantages and limitations of each approach, this work concludes with the implications of choosing the appropriate method for different engineering scenarios.
Due to their efficiency and reliability, gears are essential components in mechanical engineering systems, being used in a wide range of machines. Given their extensive application, it is necessary to deepen studies on their failure modes, improvements and optimizations in gearing systems. In this context, the American Gear Manufacturers Association (AGMA) established the ANSI/AGMA 2101-D04 (2016) standard, which is based on guidelines developed from research and empirical tests aimed at identifying areas for improvement and reducing failures in gear design. This standard defines contact stresses between gear teeth due to meshing and bending stresses. This study aimed to evaluate and compare the stress results of a transmission system from an FZG-type pitting test rig, manufactured with SAE 4118 steel, using two different approaches: an analysis based on the guidelines of the ANSI/AGMA 2101-D04 (2016) standard and a numerical simulation analysis using the Finite Element Method in ANSYS® software. The analytical method relies on equations and formulas derived from research, experiments, and tests developed over time. On the other hand, the numerical method employs computational techniques to solve practical simulation problems in engineering and other fields by discretizing mathematical equations. Additionally, this study seeks to understand how changes in certain geometric parameters and boundary conditions can affect the system's strength. By evaluating the advantages and limitations of each approach, this work concludes with the implications of choosing the appropriate method for different engineering scenarios.
Description
Mestrado de dupla diplomação com a Universidade Tecnológica Federal do Paraná
Keywords
Engrenagens de dentes retos ANSYS® ANSI/AGMA 2101-D04 (2016) Elementos finitos Máquina de “pitting” FZG